Question

If two functions f and g are said to be equal,then

Answer 1

two functions are said to be equal if their domain and range are equal
and for every x, f(x) = g(x)

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Answer 2

Answer:

The domain of f(x) = the domain of g(x) AND The range of f(x = the range of g(x) .

Step-by-step explanation:

• Two functions f & g are said to be equal
• if : The domain of f = the domain of g.
• The range of f = the range of g .
• f (x) = g (x), for every x belonging to their common domain.

• For example, $f(x)=\frac{1}{x} \\\\g(x)=\frac{x}{x^{2} }$  are identical functions.